strange problem! need help

First off, Hi all this is my first post to the forums, been lurking for a while tho.

Here is my setup:
Moniter: 8" lilliput touch screen 809GL-80NP/C/T
Computer: Kinda an odd ball setup but it is the guts from one of these: http://www.cappuccinopc.com/cappuccinoez3.asp
more pics: http://www.jeff.net/itx
got this off of ebay, and for what it is it runs great and was cheap.
Running Win xp pro SP2

Heres the problem, I have Delorme street atlas 2005 on it along with a earthmate GPS. Since I have set this up my gps has had a hard time getting a fix at all. I had this hooked up to a laptop and everything worked great till the laptop died. Then last night i accidently shut off the lilliput monitor and within seconds the gps got a fix(green light on the reciever) turn the monitor back on and it looses the fix, this is very repetable and not random. At first i thought it might be that this computer only has USB 1.1 but so did the laptop i used before. the only other thing i can think of it there is only 128 meg of ram in it.

got any clues for me to try?

Darren

Both the TS and Earthmate are USB 1.1 device so that doesn't matter much.

Could be interference?

tried it without the touch screen hoohed up and still the same thing...this is really wierd..

Darren